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CROSS regions
Insufficient attention to the construction of tower crane bases
While working on construction sites a reporter was involved with tower crane bases supported on piles with pile caps and pedestals with cast-in anchors that had significant construction defects.
1 August 2020
CROSS Safety Report
Report ID: 920
Region: CROSS-AUS
Dismantling of tower cranes
The falling of two cranes during dismantling in 2019, one in the US and one in the UK, prompts reflections on crane safety on construction sites.
1 March 2020
CROSS Safety Report
Report ID: 868
Region: CROSS-US
Inspection and maintenance of Super-T bridge girders
Doubts exist about the durability and maintenance of bridge Super-T girders as a result of lack of access for inspection of sealed internal cavities.
1 August 2020
CROSS Safety Report
Report ID: 956
Region: CROSS-AUS
Light gauge steel fabrication
Referring to Report AUS-4, Light steel truss issues, this reporter has concerns about the low ductility of the high tensile steel, in particular with respect to connection design and capacity.
1 August 2020
CROSS Safety Report
Report ID: 957
Region: CROSS-AUS
Collapse of a reinforcing cage
The reinforcing cage to a blade pier for an overpass bridge collapsed without warning when nearing completion.
1 August 2020
CROSS Safety Report
Report ID: 941
Region: CROSS-AUS
Structural engineer faces ethical challenge
A structural engineer performing a delegated design faced an ethical dilemma when discovering what is believed to be errors in the base structural design performed by others.
1 September 2020
CROSS Safety Report
Report ID: 943
Region: CROSS-US
Maintenance of multi-storey buildings
A correspondent notes that the issues currently affecting several high-rise buildings in Australia are inevitably focused on design, construction, and certification; whereas there are other issues relating to ongoing inspection, maintenance, and (ultimately) demolition which seem to have been ignored.
1 February 2020
CROSS Safety Report
Report ID: 878
Region: CROSS-AUS
Design and erection of prefabricated (precast) concrete
A correspondent considers that there should always be an experienced temporary works designer for prefabricated concrete structures as many structural engineers do not consider the erection methodology when designing such structures.
1 February 2020
CROSS Safety Report
Report ID: 871
Region: CROSS-AUS